超动感劲爆的音乐:开源（或免费）有限元分析、优化软件介绍

FEA Software----有限元分析软件
Impact Open source free explicit FE solver for high velocity & large deformation analyses such as car crashes, press operations etc.
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Platform - All operating systems

FEMM
A free FEA software for magnetic field analysis. Can be used for 2D planar & axisymmetric problems. Constrained Delaunay triangulation auto-mesher.
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Created by D.Meeker
Platform - Windows

Code_Aster
Free FEA system, part of the open source movement. Linear & non-linear static/dynamic, thermal & fluid analysis. You will need to compile the code for your machine. Software is in French.
Created by EDF
Platform - Linux, Solaris and IRIX 64 bits

CAELinux
A DVD image of Linux & Code Aster which must be burnt as a bootable DVD. No installation required, simply boot-up from the DVD to have a version of Linux on your normal computer and Code Aster will be ready to run on your computer, it also uses the Salome open source pre & post-processor. Non-linear thermo-mechanics, coupled fluid-structure dynamics, sismic / non-linear explicit dynamics, contact and visco-plasticity simulation.
Created by Joel Cugnoni 
Platform - Linux

SLFFEA
Free FEA system, part of the open source movement. Linear static analysis.
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Created by San Le
Platform - Unix, Linux

CALCULIX
Free FEA system, part of the open source movement. Linear & non-linear static & dynamic analysis, uses only 3D tetrahedron & hexahedral elements. Hyperelastic, plastic & user defined materials. Creep analysis.
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Created by Guido Dhondt & Klaus Wittig
Platform - Linux, Irix
A free command prompt windows version is available at Convergent Mechanical Solutions.

FrameWork
Freeware for frame analyses. Can do both linear & non-linear analyses for 2D problems but only linear analyses for 3D frames. Can also do eigenvalue analyses.
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Created by Gerrit Wolsink
Platform - Windows

APM
Light version freeware for frame strength & dynamic analysis.
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Created by APM R & D
Platform - Windows

Z88
Free structural analysis FE software with plane, axisymmetry & solid elements.
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Created by Dr. Frank 
Platform - Windows & Linux

TOCHNOG：
http://tochnog.sourceforge.net/
TOCHNOG is a free finite element program.
FEAPpv A Finite Element Analysis Program: Personal Version
http://www.ce.berkeley.edu/projects/feap/feappv/
FEAPpv is a general purpose finite element analysis program which is designed for research and educational use. The program is described in the references:
The Finite Element Method, 5th ed., Vols. 1 and 2, by O.C. Zienkiewicz and R.L. Taylor, Butterworth-Heinemann, Oxford, 2000, (www.bh.com).
FEAPpv is designed to be compatible for compilation in UNIX or LINUX and Windows PC environments.
Aladdin
http://www.isr.umd.edu/~austin/aladdin.html
Aladdin is a computational toolkit for the interactive matrix and finite element analysis of large engineering structures, particularly building and highway bridge structures. Aladdin views finite element computations as a specialized form of matrix computations, matrices as rectangular arrays of physical quantities, and numbers as dimensionless physical quantities.
deal.II
http://www.dealii.org/
deal.II is a C++ program library targeted at adaptive finite elements and error estimation. It uses state-of-the-art programming techniques of the C++ programming language to offer you a modern interface to the complex data structures and algorithms required for adaptivity and enables you to use a variety of finite elements in one, two, and three space dimensions, as well as time-dependent problems.
LIBMESH：
http://libmesh.sourceforge.net/
The libMesh library is a C++ framework for the numerical simulation of partial differential equations on serial and parallel platforms.
IMPACT
http://impact.sourceforge.net/
Impact is an open source finite element program which can be used to predict most dynamic events such as car crashes or metal sheet punch operations. They usually involve large deformations and high velocities.
OFELI
http://ofeli.sourceforge.net/
OFELI (Object Finite Element LIbrary) is an object oriented library of C++ classes for development of finite element codes. Its main features are : Various storage schemes of matrices (dense, sparse, skyline, tridiagonal).
Direct methods and preconditioned iterative strategies for the solution of linear systems of equations.
Shape functions of most "popular" finite elements
Element arrays of most popular problems (Heat Transfer, Fluid Flow, Solid Mechanics, Electromagnetics, ...).
PdnMesh
http://pdnmesh.sourceforge.net/
pdnMesh is an automatic mesh generator and solver for Finite Element problems. It will also do post-processing to generate contour plots and Postscript printouts. GUI support using GTK or MFC (Win32) is available. The problem definition can be done in any form and given to pdnMesh as an input data file. Drawing Exchange Format (DXF) files can be directly imported to pdnmesh. The quality and the coarseness of the mesh can be controlled by giving input parameters.
VectorSpace C++ Library (vs.lib)
http://www.vector-space.com/
vs.lib is a math library in C++ with a set of linear algebra and integrable / differentiable objects. vs.lib is a rapid-proto-typing tool which makes programming in numerical applications as easy as writing mathematical expressions.
FFEP
http://www.uni-essen.de/ingmath/ffep/
The Free Finite Element Package is a modular designed collection of C libraries. These libraries contain numerical methods required when working with linear and quadratic Finite Elements in two dimensions.
MGGHAT
http://math.nist.gov/~WMitchell/mgghat/mgghat.html
MGGHAT (MultiGrid Galerkin Hierarchical Adaptive Triangles) is a FORTRAN program for the solution of general second order linear self-adjoint elliptic partial differential equations with Dirichlet, natural or mixed boundary conditions on 2D polygonal domains (possibly with holes).
MODULEF
http://www-rocq.inria.fr/modulef/english.html
The MODULEF library contains about 3000 procedures written in Fortran 77. These procedures were designed with the utmost concern for software portability
MOUSE
http://fire8.vug.uni-duisburg.de/MOUSE/
MOUSE is an object oriented framework for finite volume computations on unstructured grids. Right now it is mainly targeted at people who want to develop specialized numerical programs.
SAP84
http://www.sap84.com/
FEDEAS
http://www.ce.berkeley.edu/~filippou/Research/fedeas.htm
FEDEAS is a structural element library for the linear and nonlinear, static and dynamic analysis of buildings and bridges that works under the general purpose finite element analysis program FEAP developed by Professor Robert L. Taylor.
FREE Software In JAVA That Can Be Tested Online
http://dattaraj_rao.tripod.com/FEM/
Optimization Software---优化软件
Epogy
Epogy is a graphical analysis automation and numerical optimization framework. You can couple your analysis codes without programming. A revolutionary, fully automated, artificial intelligence engine controls robust and popular optimization techniques including genetic, downhill simplex, and SQP algorithms. Pointer takes the guesswork and drudgery out of optimization. Only limited features are available in this free download.
Created by - Synaps Inc
i-Top
Free topology optimization for any uploaded model of less than 100 kB in size. Only ABAQUS file formats are accepted, which most FE systems can write to. They use the Calculix solver which can solve for linear static, material plasticity, geometric non-linearity and contact.
Created by - Online FEA Solver
信息分拣来源：
http://www.freebyte.com/cad/fea.htm